What should I do if some seedlings die in watermelon stubble?

The disease manifested by watermelon stubble is also called stubble disorder.

There are three major manifestations of watermelon stubble:

1. Rotten roots and dead trees.

2. Poor growth and development (deformed melon, deformed fruit, small leaf, yellow leaf, slow growth).

3. Low yield (the yield in the first year is OK, and there are few diseases.) The second year was okay, the third year there was a noticeable drop in production)

There are four reasons for the three major manifestations of watermelon stubble.

1. Watermelon heavy planting will break the nutritional disorder, that is, the watermelon absorbs certain elements excessively and does not supplement it in time.

2. After the watermelon is planted, it will discharge toxins, that is, the phenomenon of self-poisoning.

3. After watermelon stubble planting, soil-borne pests and diseases are aggravated. Like root rot, bacterial wilt, blight, yellow blight, and root-knot nematodes are severe.

4. The last and most important point is caused by excessive fertilization.

Wanmukang heavy stubble agent is a special product developed according to our serious heavy stubble, which is different from the general fungicide and also different from the general fungicide. Its mechanism of action is to improve the living environment of crops at the same time, inhibit and kill germs, and supplement nutrition.

If this happens, the best thing to do is to pay attention to watering and fertilizing, otherwise it will definitely die in the end, and it will become very wilted, and you should also pay attention to the renovation of the whole soil.

To improve soil temperature, ventilation and humidity, and at the same time to enhance the disease resistance of seedlings, once it is found that the melon seedlings have wilted, they will be sprayed with 64 frost spirit manganese zinc wettable powder 500 times.

At this time, you should water the watermelon more and ensure the healthy growth of the watermelon, so as to prevent such a situation.

The occurrence of dead watermelon seedlings is related to climatic conditions, soil texture, water and fertilizer management and other factors.

1. When the temperature in the shed is too high or too low, the temperature in the shed is too high, which is easy to cause the melon seedlings to lose water and wilt, so that the stems and leaves dry up and die of the seedlings. In addition, after the melon furrow is covered with mulch, the ground temperature often rises higher under the irradiation of strong light.

If the watering is insufficient, it is also easy to cause the seedlings to die due to high temperature damage to the roots. When the temperature in the shed is low, especially when the ground temperature is low for a long time after planting, the roots are very susceptible to damage, resulting in the death of seedlings.

In addition, when the sealing of the shed is not strict or the shed film is broken, the air leakage will often cause the surrounding melon seedlings to freeze and die due to the cold wind blowing directly on the melon seedlings.

2. During the planting process, the melon seedlings are seriously injured and the greenhouse temperature is high, and the melon seedlings are easy to die; When the bottom moisture is insufficient and the planting water is less, it is easy to cause the melon seedlings to die in the high temperature period. The soil is clayey, and there is too much watering, and when the soil has poor air permeability for a long time, it is easy to cause dead seedlings due to root rot.

3. Shallow fertilization, melon seedlings planted on fertilizer are easy to die due to root burning; When the amount of fertilizer is large and the fertilizer is uneven, the place where more fertilizer is applied will also cause the seedlings to die due to burning the roots of the melon seedlings.

4. Underground pests can bite off young stems or bite roots, as well as melon seedlings can cause dead seedlings.

2. Methods to prevent and reduce dead seedlings:

1. Select strong seedlings and disease-free seedlings for planting.

2. Carry out adaptive exercise on melon seedlings before planting to enhance the drought tolerance and low temperature tolerance of melon seedlings.

3. Improve the quality of planting, raise seedlings, transport seedlings, plant seedlings and water according to the requirements of the regulations.

4. To improve the quality of fertilization, it is necessary to evenly fertilize and fertilize appropriately, and it is recommended to choose water-soluble fertilizer with the effect of soil chef, which can promote strong roots and enhance the strength of watermelon.

5. Strengthen the temperature management in the shed during the seedling slowing period to avoid the shed temperature being too high or too low.

6. Strengthen the prevention and control of watermelon diseases and pests.

1. It may not be the season to plant watermelons, and the time to plant watermelons should be right. 2. If the nutrition is insufficient, increase the application of organic fertilizer in time. 3. When the weather is dry, water in time.

4. Excessive rainwater, timely drainage. Watermelon likes a warm, dry climate, not cold-tolerant, the optimal temperature for growth and development is 24-30 degrees, the optimal temperature for root growth and development is 30-32 degrees, and the minimum temperature for root hair occurrence is 14 degrees. Watermelons require a large temperature difference between day and night during growth and development.

Watermelon is drought-tolerant and not humidity-tolerant, and when there are many rainy days, the humidity is too high and it is susceptible to disease. Watermelons love light, and watermelons have a long growth period, so they need a lot of nutrients. With the growth of the plant, the amount of fertilizer required by the watermelon gradually increases, and reaches the maximum value when the fruit grows vigorously.

Watermelon has strong adaptability, and the sandy soil with loose soil, deep soil layer and good drainage is the best. Likes weak acidity, pH 5-7.

<> watermelon is a common fruit, and it is not to mention how refreshing it is to eat a bite of chilled watermelon juice in the summer. Watermelons are planted in many places in China, and the watermelons grown are different in different places and seasons. When planting watermelons, various problems are often encountered, such as dead seedlings of watermelons, no melons, small melons and so on.

For the question mentioned, what is the reason why the watermelon seedlings died? Let me tell you what I think.

1. Excessive rain leads to the death of watermelon seedlings. In the event of continuous rainy days, the soil is moist, resulting in the roots of the watermelon seedlings being soaked in the moist soil, and the roots will rot, and the watermelon seedlings will die at this time. Therefore, in case of continuous rain, it is necessary to drain the water in time.

2. The weather is too dry. The weather was dry and not watered in time, and the watermelon seedlings died of lack of water. Therefore, it is necessary to water the watermelon seedlings in time to ensure the moisture of the soil.

3. Fertilization reasons. If unripened farmyard manure is applied, it will cause watermelon seedlings to burn and die after application. In the same way, some chemical fertilizers directly contact watermelon seedlings, which will also cause dead seedlings.

Therefore, when applying farmhouse fertilizer, it should be applied after ripening, and chemical fertilizer should be far away from the roots.

4. Temperature problem. If the temperature is too high or too low, it may cause the death of watermelon seedlings. The temperature is too low, and the watermelon seedlings are frozen to death, and the growth stops below 10.

When the temperature is high, the soil moisture will evaporate quickly and die due to lack of water. Therefore, if the weather is too low, it is necessary to take good measures to keep warm, and if it is too high, it is necessary to shade and water properly.

5. Pests and diseases. Watermelon seedlings encounter wilt, root rot, etc., and the main insect pests are small ground tigers, aphids, red spiders, etc., which will cause the death of watermelon seedlings. Therefore, it is necessary to take control measures at the time of planting to reduce losses.

6. Continuous causes. Continuous cropping will lead to aggravation of pests and diseases in the soil, and imbalance of nutrients in the soil will cause seedlings to die. Therefore, it is best not to grow watermelons all the time on the same land, but to rotate crops, and to disinfect and sterilize the soil.

In short, there are many problems encountered in planting watermelons, about the death of watermelon seedlings, the above is what I thought of, I hope it will be useful to you.

The occurrence of dead watermelon seedlings is related to climatic conditions, soil texture, water and fertilizer management and other factors, such as the temperature in the shed is too high or too low, which can easily cause watermelon seedlings to lose water and wilt or cause dead seedlings due to high temperature damage to the roots; or the application of organic fertilizer that is not fully decomposed, resulting in root burning and seedling death; If the soil is clayey and watered too much, the soil has poor air permeability for a long time, and it is easy to cause dead seedlings due to root rot. In addition to the above reasons, the death of watermelon seedlings is more likely to be due to pests and diseases. Watermelon seedling diseases mainly include cataplexy, blight and root-knot nematode disease, so experts especially remind that growers need to combine nematodes to prevent and control nematodes in addition to strengthening field management in preventing the occurrence of dead watermelon seedlings, so as to provide a suitable soil environment for the growth of watermelon.

In the selection of threadicide, it is recommended that farmers choose Yinghui threadkiller. Before watermelon sowing or transplanting, use Yinghui threadicide granules furrow, hole or whole field spraying, which is effective for nematodes for 2-3 months. If the watermelon is seriously damaged during the growth period, the roots should be irrigated with Yinghui blue root sand mixed with water, and the application should be washed.

Nutrition is insufficient, when planting watermelons, it is necessary to ensure reasonable fertilization and watering to ensure the survival rate.

Summary. Yes, but it should be well managed, compared to the pesticide damage, it is recommended to use amino acid foliar fertilizer to alleviate it first, and then the fertilizer and water management work should keep up.

Transplanting watermelon seedlings at noon and finding that the leaves are dead, can they still grow?

Yes, but it should be well managed, compared to the pesticide damage, it is recommended to use amino acid foliar fertilizer to alleviate it first, and then the fertilizer and water management work should keep up.

As long as not all of them are dead, they can be saved.

This means that as long as the roots are not dead, they can live, right?

If the watermelon seedlings are only slightly dried up and there is no problem with the heart leaves, then it will not affect the slow seedlings. Generally speaking, the leaves of watermelons will dry up a little when we plant them, which is mainly caused by the refining of seedlings before planting, but in fact, such seedlings are easy to survive.

That is to say, Ye Xin is still there, and it is still okay.

How long does it take for new shoots to grow.

This condition may last for a week or so for new shoots to grow, and if they do not grow, they may die.

The stems and roots are very good, and I am very worried when I look like they are dead.

You can go and see if Ye Xin is still there, if Ye Xin also dies, then you may not be able to think of a new leaf and can only wait for death.

What is Leaf Heart.

Ye Xin is the top of the watermelon vine, and that is Ye Xin.

Hello, no, because if there is no leaf heart to survive, it has affected the growth of watermelon, and no new leaves can grow, so you can only wait for death, maybe not all at once, but it will slowly all wither and die.

1. It is recommended to use 500 times of calcium + energy to supplement the roots after transplanting, and continuously drip irrigation and root drenching 2 times, which can effectively promote new roots, promote slow seedlings, and reduce dead seedlings. Combined with leaf spraying power + fruit power, zinc and boron supplementation can promote flowering and flowering, improve the rate of melon setting, and reduce deformed melon. 2. Watermelon dead seedlings can be sprayed in the melon field with anti-dry Ning Tobuzin and other agents, sprayed once in 3-4 days in the early stage of the disease to control the spread, and then sprayed once every 7 days as well, when spraying, the back of the leaf and the leaf surface should be sprayed full, especially focusing on the back of the leaf, in addition, insecticides such as phosphine can be used to kill the insect body, to ensure that the whole watermelon seedlings are strong, reduce the pest injury seedlings, and prevent the dead seedlings of watermelon.

The leaves of the watermelon are wilted, which may be the watermelon infected with leaf blight. After being infected with leaf blight, it will invade the leaf part, and the edge and tip of the leaf will be infected first, and a large number of lesions will appear, and then the lesions will expand, causing the leaves to become thinner, scorched, and then fall off. In addition to the damage to the leaves, it can also harm the fruits.

Fungal wilt, if you say that it is diseased, it is this, but your leaf wilting is not necessarily a disease, it may also be too much fertilization, too much sunlight exposure will also wilt.

R. wilt, wilt, wilt, root lesions, fertilizer pests, pests, pesticide damages, droughts, and floods are all possible.

Summary. Hello, glad to answer for you. Watermelon dead seedlings must be one of them.

As soon as they saw the dead seedlings, some farmers panicked: What is going on? Can it still be saved?

What to do......In fact, there is only one most important thing, to find out what caused the dead watermelon seedlings.

It is understood that the occurrence of dead watermelon seedlings is related to climatic conditions, soil texture, water and fertilizer management and other factors, such as the temperature in the shed is too high or too low, which is easy to cause watermelon seedlings to lose water and wilt or cause dead seedlings to damage the roots due to high temperature; or the application of organic fertilizer that is not fully decomposed, resulting in root burning and seedling death; If the soil is clayey and watered too much, the soil has poor air permeability for a long time, and it is easy to cause dead seedlings due to root rot.

What is the reason for the death of watermelon seedlings?

Hello, glad to answer for you. Watermelon dead seedlings must be one of them. As soon as they saw the dead seedlings, some farmers panicked

What's going on? Can it still be saved? What to do......In fact, there is only one most important thing, to find out what caused the dead seedlings of the slippery watermelon.

It is understood that the occurrence of dead watermelon seedlings is related to climatic conditions, soil texture, water and fertilizer management and other factors, such as the temperature in the shed is too high or too low, which is easy to cause watermelon seedlings to lose water and wilt or cause dead seedlings due to the high temperature of Wang Ranglu; or the application of organic fertilizer that is not fully decomposed, resulting in root burning and seedling death; If the soil is sticky, watered too much, and the soil is not well ventilated and trapped for a long time, it is easy to cause dead seedlings due to root rot.

The watermelon seedlings die as soon as they grow.

Hello, most of them are carrying the watermelon with the balance book and suffering from cataplexy and blight. Cataplexy is the most common disease at the seedling stage, the base or middle ridge of the embryonic stem exposed at the seedling stage is soaked in water, and then becomes yellow-brown and shrunken, the cotyledons have not yet withered, and the seedlings are suddenly cataplexed, so that the seedlings are attached to the ground, and sometimes the cotyledons and cotyledons of the melon seedlings have been generally rotted, browned and died. Standing blight is mainly harmful to the base of the seedling stem or the underground roots, at the beginning of the oval dark brown lesion on the stem, gradually concave inward, the edge is more obvious, after the expansion around the stem, causing the stem to shrink and dry up, and then the melon seedling dies.

What's the best way to do it?

Hello, when the watermelon seedlings grow to more than 30 cm, if you find that the seedlings wilt, you can cut a longitudinal small mouth of 2 cm long and 4 5 mm deep at the intersection of roots and stems at the intersection of roots and stems, and then cut the purple garlic into 2 4 mm thick slices, put them at the edge of the knife, bury the soil and water, after this treatment, you can ensure that the melon seedlings are not rotten and die. 2. Use 50 grams of urea, potassium dihydrogen phosphate and white sugar per mu, mix the three, first melt with an appropriate amount of warm boiled water, and then add 50 kg of water (including warm boiled water) to prepare a mixture. Starting from the watermelon seedlings, spray the stems and leaves of the melon plant evenly with this mixture once every 7 days, and spray 2 or 3 times in a row, and the control effect can be more than 95%.

It can also be used to irrigate the roots with this mixture at the beginning of the disease, and it can be watered once every 3 days, 3 times in a row.